The Pfeiffer Center hosts workshops and training programs that teach biodynamics. 260 Hungry Hollow Rd., Chestnut Ridge, NY 10977, 845-352-5020.Celestial calendar: $15 from Stella Natura, PO Box 783, Kimberton PA 19442, 610-469-9686Biodynamic preparations: Josephine Porter Institute for Applied Bio-Dynamics, PO Box 133, Woolwine, VA 24185-0133, 276-930-2463. One dose covers up to an acre of Preparation 500 is $8; 1 dose of Preparation 501, $3.Biodynamic seed: Turtle Tree Seed, Camphill Village, Copake, NY 12516, 888-516-779
- There are many different soils, crops, and farmers. For those who see problems developing and want to get off the chemical treadmill, a program of reducing amounts of fertilizer, using slow-release types, replenishing organic matter, and reintroducing beneficial microorganisms can create productive soils that will last indefinitely.